/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.wms.studio.utils;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.subject.Subject;

import com.wms.studio.realm.UserRealm.ShiroUser;

/**
 * @author WMS
 * 
 */
public class UserUtils {

	public static String getCurrentUserId() {
		Subject subject = SecurityUtils.getSubject();
		if (subject == null || subject.getPrincipal() == null) {
			return null;
		}
		return ((ShiroUser) subject.getPrincipal()).loginName;
	}
}
